Ok i have come here after trying multiple things to try and fix the rpm spikes. I'm running e85 on a turbo 420a, 8.8:1 comp, and cams. I'm running MS1 V3 MSn'S-E 029q code, and the cps signal is filtered through the vr circuit. I'm getting spikes at about 5500 rpm they are as bad as they were before i installed the caps but its just frustrating that i cant accelerate to the redline. The spikes only happen when i'm driving and not when i free rev it.
what i've tried: -unplugging the alternator -grounding MS to the block -grounding MS to the neg terminal on the battery -changing ignition tables -changing spark dwell -changing my cps filering with r52 and r56 pots -installed 100nf caps on pins 1&2, 19&20, 31&32, and 6&ground -making sure there isn't a ground loop through the MS case -changed spark plug wires
